user: forbid manage of emails for external accounts.

- e.g LDAP accounts shouldn't allow to add additional emails.

rhodecode/templates/admin/my_account/my_account_emails.mako

@@ -1,54 +1,60 b''
 <%namespace name="base" file="/base/base.mako"/>
 
 <div class="panel panel-default">
   <div class="panel-heading">
     <h3 class="panel-title">${_('Account Emails')}</h3>
   </div>
 
     <div class="panel-body">
         <div class="emails_wrap">
           <table class="rctable account_emails">
             <tr>
             <td class="td-user">
                 ${base.gravatar(c.user.email, 16)}
                 <span class="user email">${c.user.email}</span>
             </td>
             <td class="td-tags">
                 <span class="tag tag1">${_('Primary')}</span>
             </td>
             </tr>
             %if c.user_email_map:
                 %for em in c.user_email_map:
                   <tr>
                     <td class="td-user">
                         ${base.gravatar(em.email, 16)}
                         <span class="user email">${em.email}</span>
                     </td>
                     <td class="td-action">
                         ${h.secure_form(h.route_path('my_account_emails_delete'), request=request)}
                             ${h.hidden('del_email_id',em.email_id)}
                             <button class="btn btn-link btn-danger" type="submit" id="${'remove_email_%s'.format(em.email_id)}"
                                     onclick="return confirm('${_('Confirm to delete this email: {}').format(em.email)}');">
                                 ${_('Delete')}
                             </button>
                         ${h.end_form()}
                     </td>
                   </tr>
                 %endfor
             %else:
                 <tr class="noborder">
                     <td colspan="3">
                         <div class="td-email">
                             ${_('No additional emails specified')}
                         </div>
                     </td>
                 </tr>
             %endif
           </table>
         </div>
 
+    % if c.user.extern_type != 'rhodecode':
+        <p>${_('Your user account details are managed by an external source. Details cannot be managed here.')}
+           <br/>${_('Source type')}: <strong>${c.user.extern_type}</strong>
+        </p>
+    % else:
         <div>
            ${c.form.render() | n}
         </div>
+    % endif
     </div>
 </div>